Guide bar



Feb. 5, 1929.

C. H. VAUGHAN ET AL GUIDE BAR Filed July 20, 1927 2 Sheets-Sheet 1 r I I I I -I f 2% INVENTOR ATTORNEY J 5W3 W Feb. 5, 1929. 1,701,432 c. H. VAUGHAN ET AL GUIDE BAR Filed Jul 20, 1927 2 Sheets-Sheet 2 INVENTOR ATTORNEY Patented Feb. 5, 1929.

'uu rso sTArEs CANADA.

Gums BAR.

A lication"filed July 20;

:This invention relates to cross heads primarily adapted for use upon cylindrical types of guides bars.

Another object of the invention comprehends gib members adapted to accommodate the cross head upon the guide bars and capable of being removed for replacement incident to wear.

A further object of the invention conteniplates means for suitably anchoring the aforementioned type of guide bars upon its work.

More specifically stated the cross head is adapted for central connection with pitmen and piston rods within the body portion thereof whereby thestroke of the cross head will be consequently more effectively balanced for more effective operation.

With the above and other objects in View, the invention further consists of the following novel features and details of construction, to be hereinaftermore fully described, illustrated in the accompanying drawings and pointed out in the appended claim.

In the drawings:

Figure 1 is a side elevation of the cylinder type of guide bars with the novel form of cross head mounted thereon. I

Figure 2 is a top plan view of the invention.

V Figure 3 is a sectional view taken on line 3-45 of Figure 1.

Figure 1 is a sectional view taken on line -alof Figure 1.

Figure 5 is a sectional view taken on line 5 5 of Figure 3. Figure 6 is a longitudinal sectional view taken through a portion of the cross head and illustrating the connection of the gibs therewith.

Figures 7. 8 and 9 are sectional. views of proposed types of tubular, circular and semicircular forms of guide bars.

Referring to the drawings in detail, wherein like characters of reference denote corresponding parts, the reference characfer-s10 indicate tubular cross bars adapted to receive threaded shanks 11 carried upon attaching ears 12 which are in turn connected with ears 13 carried upon an appropriate portion of a. cylinder housing 14;. Set screws 15 are employed to preventdisplacement of the guide bars upon the shanks. Said guide bars are extended in parallel re- 1927.; Serial No. 207,293.

lation and subsequently connected with semi-.

. to preserve the dispositions thereof.

The cross head comprehends spaced plate members 20 adapted to receive the reduced portions 21 of supporting plates 22, gouged The connecting end of a pitman shaft 26 A is positioned between the plate members 20 and adapted to receive within a bushing 27 therefor a pitman pin 28 in order that the aforementioned end of the pitman shaft may be free to rock upon successive strokes of the P ENT 0mm CLAUDE, H, VAUGHAN AND J Y H. HAMILTON, iOEPENTIGTOE-EI. BRITISH conmvuzfa,

as indicated'at 23, to provide semi-circular cross head. ,A piston rod 29'extended through the housing 14- is also connected centrally of the cross'head in any desired v manner in so far as said rod is not free to 'rockas in the instance of the pitman rod 26.; WVipes 30 are carried adjacent the ends of thegibs 25' to remove all extraneous matter encountered, in order that the same may not work against the bearing qualities of the gibs. a

In Figure 7 of the drawings, we have illustrated the type of guide bar employed for use upon the cross head. It has been tested and discovered that the particular type of.

guide bar has eight times the strength of the Hat guidebar. The round solid bar as illusftrated in Figure 8 of the drawings has twice 'lhe strength of the flat guide bar and the semi-circular har has about the same strength of the flat bars.

The invention is susceptible of various changes in its form, proportions and minor details of construction, and the right herecompanion plates rigidly connecting supporting plates: at the extremities thereof, said supporting plates being provided with semicircular gouged and toothed portions upon the outer surfaces thereof, gibs conforming to the configuration of the gouged portions and adjacent faces of the guide bars, said ribs being adapted for toothed connection with the gouged portions of the supporting plates.

In testimony whereof We affix our signatures.

CLAUDE H. VAUGHAN JAY 1-1. HAMILTON. 

